18420690536

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{809}}^1\times {\mathrm{66191}}^1$

素因数の和:67049

約数の個数: 32

約数和(自身を含む): 35386243200

約数和(自身を除く): 16965552664

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 809, 1618, 3236, 6472, 34787, 66191, 69574, 132382, 139148, 264764, 278296, 529528, 2846213, 5692426, 11384852, 22769704, 53548519, 107097038, 214194076, 428388152, 2302586317, 4605172634, 9210345268, 18420690536]

約数ペア:

[(1, 18420690536), (2, 9210345268), (4, 4605172634), (8, 2302586317), (43, 428388152), (86, 214194076), (172, 107097038), (344, 53548519), (809, 22769704), (1618, 11384852), (3236, 5692426), (6472, 2846213), (34787, 529528), (66191, 278296), (69574, 264764), (132382, 139148)]